Acylation reagents for GC - Anhydrides
For improved volatility, better thermal stability or low limit of detection in gas chromatography prerequisite: quantitative, rapid and reproducible formation of only on derivative halogen atoms introduced by derivatisation (e.g. trifluoroacetates) allow specific detection (ECD) with the advantage of high sensitivity elution order and fragmentation patterns in MS can be influenced by a specific derivatisation.
Reagents for silylation - alkylation (methylation) - acylation are available.
Acylation with fluorinated acid anhydrides can be used for alcohols, phenols, carboxylic acids, amines, amino acids and steroids forming volatile, stable derivatives suited for FID as well as for ECD detection.
by-products of acylation with anhydrides: corresponding acids
excess reagent and the acid formed have to be removed
Heptafluorobutyric acid anhydride (HFBA)
m.w. 410.06, Bp 106 - 107°C (760mm Hg),
C3F7 - CO - O - CO - C3F7
density d20°/4° = 1.665
Tuotekoodi | Valmistaja | Nimi | Description | Capacity (ml) |
---|---|---|---|---|
4001479 | 701110.110 Macherey-Nagel GmbH & Co. KG |
Acylation reagent HFBAChemical Kit 9 II 0.01 kg/L 1 |
HFBA | 10 |
4001480 | 701110.201 Macherey-Nagel GmbH & Co. KG |
Acylation reagent HFBA 20 |
HFBA | 1 |
4001481 | 701110.510 Macherey-Nagel GmbH & Co. KG |
Acylation reagent HFBAUN 3316 Chemical Kit 9 II 5 |
HFBA | 10 |
Mäkituvantie 7, 01510 Vantaa
Puhelin 0207413170
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